.wrap{
    width:100%;
    height: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.con{
    width:100%;
    flex:1;
    overflow: scroll;
}

.foot{
    width:100%;
    height: 44px;
    line-height: 44px;
    border-top:1px solid gray;
    display: flex;
    justify-content: space-between;
}